15–20 Oct 2017
Congress Center Garmisch-Partenkirchen
Europe/Berlin timezone
The proceedings of the 7th Fermi Symposium are available at https://pos.sissa.it/312/

An Einstein@home blind search for gamma-ray pulsars

16 Oct 2017, 15:15
15m
GaPa/1-1 - Olympiasaal (Garmisch-Partenkirchen)

GaPa/1-1 - Olympiasaal

Garmisch-Partenkirchen

100
Contributed talk Pulsars Pulsars

Speaker

Jason WU (MPIfR)

Description

We present the results of the analysis of 13 gamma-ray pulsars discovered in the Einstein@Home blind search survey using Fermi Large Area Telescope (LAT) Pass 8 data. The 13 new gamma-ray pulsars were discovered by searching 118 unassociated LAT sources from the third LAT source catalog (3FGL), selected using the Gaussian Mixture Model (GMM) machine learning algorithm on the basis of their gamma-ray emission properties being suggestive of pulsar magnetospheric emission. The new gamma-ray pulsars have pulse profiles and spectral properties similar to those of previously-detected young gamma-ray pulsars. Follow-up radio observations have revealed faint radio pulsations from two of the newly-discovered pulsars, and enabled us to derive upper limits on the radio emission from the others, demonstrating that they are likely radio-quiet gamma-ray pulsars. We also present results from modeling the gamma-ray pulse profiles and radio profiles, if available, using different geometric emission models of pulsars.

Primary author

Jason WU (MPIfR)

Co-authors

Colin Clark (Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Hannover) Lucas Guillemot (LPC2E and Universite d'Orleans)

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